CN104615174A - Method and device for controlling temperature of greenhouse in factory seedling - Google Patents
Method and device for controlling temperature of greenhouse in factory seedling Download PDFInfo
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- CN104615174A CN104615174A CN201510046607.8A CN201510046607A CN104615174A CN 104615174 A CN104615174 A CN 104615174A CN 201510046607 A CN201510046607 A CN 201510046607A CN 104615174 A CN104615174 A CN 104615174A
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Abstract
The invention discloses a method for controlling the temperature of a greenhouse in factory seedling. The method includes the steps of: collecting the internal temperature Tn data and external temperature Te data of the greenhouse, and calculating the internal and external temperature difference DeltaT of the greenhouse; determining the target open degree Kn of a ventilation opening of the greenhouse according to the internal and external temperature difference DeltaT and Tn of the greenhouse; detecting the actual open degree K of the ventilation opening, calculating the error DeltaK between the target open degree Kn and the actual open degree K, and regulating the open degree of the ventilation opening. The method controls the strength of air motion inside and outside the greenhouse through accurately controlling the open degree of the ventilation opening of the seedling greenhouse, and thereby controls the temperature in the greenhouse. According to the method, the growth conditions of seedlings in the greenhouse can be subjected to image monitoring, and the temperature can be remotely controlled.
Description
Technical field
The present invention relates to agricultural technology field.More specifically, a kind of factory seedling greenhouse temperature-controlled process and device is related to.
Background technology
Some crops (as paddy rice) before planting, need first to its seedling, and the different times of different types of rice shoot in growth course requires different to the environmental factor such as temperature, moisture.Therefore, in warmhouse booth, in different periods, need to control different temperature ranges, with the growth of applicable rice shoot, improve the quality of rice shoot.
The control of generalized case temperature of shed, by heating up and two kinds of modes of lowering the temperature, heats up mainly by the radiation of sunshine, if booth thermal insulation is bad, also additionally may install the auxiliary intensification of heating arrangement.Cooling carries out air exchange by blower fan and the external world, and such heating arrangement and blower fan all will consume mass energy in operational process, and because it just acts on local in canopy, the bulk temperature in canopy is uneven, and fluctuation is large, and effect is undesirable.In actual applications, be also use heating arrangement in minority canopy, the cooling of most of booth normally realizes with the keying by ventilating opening, utilize the air inside and outside canopy to flow and play the object of cooling, but be generally all that manual site operates, waste time and energy, effect is also bad.
The method and device can for the kind of rice shoot and growth periods, determine most suitable canopy temperature scope, by Real-time Collection booth internal and external temperature information, pass through the process to data and analysis, control the opening degree of booth ventilating opening, realize the accurate Based Intelligent Control to temperature of shed.
In the method and device, the ventilating opening of booth is by air inlet ventilation mouth and air-out ventilating opening, and air inlet/outlet ventilating opening is in same opening degree, and canopy inner air and outer air is fully flowed, and allows temperature of shed even variation.The method and device control canopy temperature within suitable scope by controlling ventilating opening on the whole.Mainly utilize the air inside and outside canopy to flow and realize the control of temperature, when needs raised temperature, reduce the open degree of ventilating opening, reduce the flowing of canopy inner air and outer air, temperature of shed slowly can raise under the effect of sunlight; When lowering temperature, increasing the open degree of ventilating opening, increasing the flowing of canopy inner air and outer air, temperature of shed can slowly reduce, until the outer temperature of canopy, as shown in Figure 1.User only need at the kind Modling model of processing unit according to rice shoot, and the method and device can regulate temperature of shed automatically according to this model, and whole process is without the need to artificial participation.
The method and device have employed canopy inner air and outer air and carry out temperature of shed control by ventilating opening natural flow, easy for installation, environmental protection.By the accurate control to ventilating opening, canopy temperature can be made to fluctuate little, temperature of shed can be made to remain on for a long time in a certain scope.In addition, can also carry out image acquisition to the seedling growth situation in booth, staff can long-rangely monitor situation in canopy, substantially increases work efficiency.
Summary of the invention
One object of the present invention is to provide a kind of seedling greenhouse temperature-controlled process, and the method controls the power of the air flowing inside and outside booth by the opening degree accurately controlling seedling greenhouse turnover ventilating opening, and then controls the temperature in booth.This invention can carry out picture control to seedling growth situation in booth, and can long-rangely control temperature.
For achieving the above object, the present invention adopts following technical proposals:
A kind of temperature controlled method of seedling greenhouse, the method comprises:
Gather the temperature Tn data of booth inside and outside temperature Te data, calculate booth inside and outside temperature difference Δ T;
Booth ventilating opening target open degree Kn is determined according to described booth internal temperature Tn, booth external temperature Te and booth inside and outside temperature difference Δ T;
Detect the actual open degree K of ventilating opening, calculate the error delta K of described target open degree Kn and the actual open degree K of ventilating opening, regulate the opening degree of ventilating opening.
Preferably, gather the temperature Tn data of booth inside and outside temperature Te data, calculate booth inside and outside temperature difference Δ T, comprise the steps:
Temperature data acquisition device is installed respectively in left side in the ceiling, canopy of booth and right side;
Gather the temperature of ceiling, the temperature in left side and the temperature on the interior right side of canopy in canopy;
Calculate the mean value of temperature everywhere respectively, the temperature data obtaining ceiling is Ttn, the temperature data in left side is that in Tln and canopy, the temperature data on right side is Trn in canopy;
Calculate the temperature Tn of booth inside, the temperature Tn=(Ttn+Tln+Trn)/3 of described booth inside;
Gather the temperature data Te of booth outside;
Calculate booth inside and outside temperature difference Δ T=Te-Tn.
Preferably, the temperature data Tln in the interior left side of the temperature data Ttn of described ceiling, canopy and the temperature data Trn on the interior right side of canopy, computing method are as follows:
Booth internal temperature is obtained by temperature collecting device, and described temperature collecting device is located at the ceiling of booth, booth inside left and booth inner right side, and the installation quantity of the temperature collecting device of described ceiling is N
top, it is N that the temperature collecting device of booth inside left installs quantity
left, it is N that the temperature collecting device of booth inner right side installs quantity
right;
The temperature computation method of ceiling is as follows:
Work as N
topduring <3, booth ceiling temperature Ttn is the mean value of N number of temperature data that N number of harvester collects;
Work as 3<N
topduring <7, booth ceiling temperature Ttn is the temperature averages after removing 1 maximal value and 1 minimum value;
Work as N
topduring >7, the temperature Ttn of booth ceiling is the temperature averages after removing 2 maximal values and 2 minimum value;
Described booth inside left temperature Tln is identical with the computing method of booth ceiling temperature Ttn with the computing method of booth inner right side temperature Trn; Calculate Tln and Trn.
Described Tn=(Ttn+Tln+Trn)/3.
Preferably, determine booth ventilating opening target open degree Kn according to described booth internal temperature Tn, booth external temperature Te and booth inside and outside temperature difference Δ T, comprise the steps:
The minimum value Tminn of booth external temperature Te and the temperature controlling range of booth inner setting and maximum of T maxn is compared;
As described Te<Tminn, ventilating opening is closed;
As described Te>Tmaxn, ventilating opening is opened completely;
As described Tminn≤Te≤Tmaxn, according to the scope of the value of Δ T according to specific function model determination ventilating opening target open degree Kn.
Preferably, according to certain function model determination open degree, preferred function model is:
1) function model as Δ T<0 is: Y=0
2) function model as 0≤Δ T< Δ Tcn*5% is: Y=X
2/7
3) function model as Δ Tcn*5%≤Δ T< Δ Tcn*15% is: Y=X
1/3
4) function model as Δ Tcn*15%≤Δ T< Δ Tcn*25% is: Y=X
0.4
5) function model as Δ Tcn*25%≤Δ T< Δ Tcn*35% is: Y=X
0 . 5
6) function model as Δ Tcn*35%≤Δ T< Δ Tcn*45% is: Y=X
2/3
7) function model as Δ Tcn*45%≤Δ T≤Δ Tcn*55% is: Y=X
1
8) function model as Δ Tcn*55%< Δ T≤Δ Tcn*65% is: Y=X
3/2
9) function model as Δ Tcn*65%< Δ T≤Δ Tcn*75% is: Y=X
2
10) function model as Δ Tcn*75%< Δ T≤Δ Tcn*85% is: Y=X
2.5
11) function model as Δ Tcn*85%< Δ T≤Δ Tcn*95% is: Y=X
3
12) function model as Δ Tcn*95%< Δ T≤Δ Tcn is: Y=X
3.5
13) function model as Δ T> Δ Tcn is: Y=X
3.5
Wherein, Δ Tcn is booth internal temperature variation range, Δ Tcn=Tmaxn-Tminn; Y represents the quantizing range of ventilating opening open degree Kn, Y ∈ [0,1], Kn ∈ [0,100]; Therefore Kn is uniformly distributed in the span of Y, as Y<0, and Y=0, as Y>1, Y=1; X=(Tn-Tminn)/Δ Tcn, as X<0, X=0, as X>1, X=1.
Preferably, the actual open degree K of described detection ventilating opening, calculates the error delta K of described target open degree Kn and the actual open degree K of ventilating opening, regulates the opening degree of ventilating opening, comprises the steps:
The max value of error Δ Kmax of intended target open degree Kn and actual open degree K and error minimum value Δ Kmin, described Δ K=Kn – K;
The error delta K of described target open degree Kn and the actual open degree K of ventilating opening and max value of error Δ Kmax and error minimum value Δ Kmin is compared;
As Δ K> Δ Kmax, increase ventilating opening open degree to Kn, described Δ Kmax value is 1,2,3,4 or 5.
As Δ K< Δ Kmin, reduce ventilating opening open degree to Kn, described Δ Kmax value is-1 ,-2 ,-3 ,-4 or-5.
Preferably, the method comprises further:
The video image of rice shoot in booth is obtained by image acquisition units;
The unlatching of ventilating opening is controlled according to described video image.
A kind of seedling greenhouse temperature control equipment, this device comprises:
Collecting unit, the data needed for controlling for collecting temperature, the data needed for described temperature controls are the actual open degree K of described booth internal temperature Tn, described booth external temperature Te and ventilating opening;
Performance element, according to gathered temperature data Tn and Te, controls the unlatching of ventilating opening;
Processing unit, obtains the real time data that collecting unit gathers, processes and analyze real time data, and Graphics Processing result;
Control module, receives the data of collecting unit, and sends the data of reception to processing unit, receive the instruction of processing unit simultaneously, and instruction is sent to collecting unit and performance element.
Preferably, described collecting unit comprises data acquisition unit, station acquisition unit, image acquisition units,
Data acquisition unit comprises booth internal temperature harvester and booth external temperature harvester;
Station acquisition unit, the position data of acquisition execution unit;
Image acquisition units, for gathering the image/video data of the inner rice shoot of booth.
Preferably, described temperature collecting device is located at the ceiling of booth, booth inside left and booth inner right side, described temperature collecting device is installed according to certain density, preferred packing density is 1/10 meters, described temperature collecting device is temperature sensor, described performance element is direct current generator, and described station acquisition unit is displacement or range sensor, and described image acquisition units is the camera that can gather image information; Described processing unit is computing machine, and described control module is VIR1000 internet-of-things terminal equipment.
Beneficial effect of the present invention is as follows:
The inventive method and device control the power of the air flowing inside and outside booth by the opening degree accurately controlling seedling greenhouse turnover ventilating opening, and then control the temperature in booth.This invention can carry out picture control to seedling growth situation in booth, and can long-rangely control temperature.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 illustrates the temperature controlled ventilating opening schematic diagram of a kind of seedling greenhouse;
Fig. 2 illustrates a kind of seedling greenhouse temperature controlled device composition structural drawing;
Fig. 3 illustrates the temperature controlled function model schematic diagram determining ventilating opening open degree of a kind of seedling greenhouse.
Embodiment
In order to be illustrated more clearly in the present invention, below in conjunction with preferred embodiments and drawings, the present invention is described further.Parts similar in accompanying drawing represent with identical Reference numeral.It will be appreciated by those skilled in the art that specifically described content is illustrative and nonrestrictive, should not limit the scope of the invention with this below.
First the inventive method and device set up Temperature control model according to the kind of rice shoot, and rice shoot requires different canopy Wen Wendu at different growth periods.The inventive method determines a function model according to the temperature difference inside and outside booth, utilizes the open degree of this function model determination ventilating opening.In operational process, background processing unit can obtain the temperature data inside and outside canopy in real time, through process and the analysis of Temperature control model, obtains the target open degree of warmhouse booth ventilating opening, control module makes ventilating opening reach target open degree, and then temperature of shed is accurately controlled in a certain scope.
1-3 by reference to the accompanying drawings, is described as follows the inventive method and device by following embodiment:
A kind of seedling greenhouse temperature-controlled process and device, this device comprises: data acquisition unit 11 and 12, image acquisition units 20, control module 30, performance element 40, station acquisition unit 50, processing unit 60.
Data acquisition unit 11 is connected with the data acquisition end of control module 30 with the data output end of 12, the data output end of image acquisition units is connected with the data acquisition end of control module 30, the data output end of station acquisition unit 50 is connected with control module 30 data acquisition end, the input end of performance element 40 is connected with the output terminal of control module 30, and the IP network end of control module 30 is connected with the IP network end of processing unit 60.
Utilize said apparatus, realize the temperature controlled method of seedling greenhouse and comprise the steps:
1, the determination of temperature of shed data:
Gather the temperature Tn data of booth inside and outside temperature Te data respectively by data acquisition unit 12 and 11, calculate booth inside and outside temperature difference Δ T, comprise the steps:
Temperature data acquisition device is installed respectively in left side in the ceiling, canopy of booth and right side;
Gather the temperature of ceiling, the temperature in left side and the temperature on the interior right side of canopy in canopy;
Calculate the mean value of temperature everywhere respectively, the temperature data obtaining ceiling is Ttn, the temperature data in left side is that in Tln and canopy, the temperature data on right side is Trn in canopy;
Calculate the temperature Tn of booth inside, the temperature Tn=(Ttn+Tln+Trn)/3 of described booth inside;
Gather the temperature data Te of booth outside;
Calculate booth inside and outside temperature difference Δ T=Te-Tn.
The temperature data Tln in the interior left side of the temperature data Ttn of ceiling, canopy and the temperature data Trn on the interior right side of canopy, computing method are as follows:
Booth internal temperature is obtained by temperature collecting device, and temperature collecting device is located at the ceiling of booth, booth inside left and booth inner right side, and the installation quantity of the temperature collecting device of ceiling is N
top, it is N that the temperature collecting device of booth inside left installs quantity
left, it is N that the temperature collecting device of booth inner right side installs quantity
right;
The temperature computation method of ceiling is as follows:
Work as N
topduring <3, booth ceiling temperature Ttn is the mean value of N number of temperature data that N number of harvester collects;
Work as 3<N
topduring <7, booth ceiling temperature Ttn is the temperature averages after removing 1 maximal value and 1 minimum value;
Work as N
topduring >7, the temperature Ttn of booth ceiling is the temperature averages after removing 2 maximal values and 2 minimum value;
Booth inside left temperature Tln is identical with the computing method of booth ceiling temperature Ttn with the computing method of booth inner right side temperature Trn; Calculate Tln and Trn.
Tn＝(Ttn+Tln+Trn)/3。
2, the determination of ventilating opening open degree:
Determine booth ventilating opening target open degree Kn according to described booth internal temperature Tn, booth external temperature Te and booth inside and outside temperature difference Δ T, comprise the steps:
The minimum value Tminn of booth external temperature Te and booth internal temperature and maximum of T maxn is compared;
As described Te<Tminn, ventilating opening is closed;
As described Te>Tmaxn, ventilating opening is opened completely;
As described Tminn≤Te≤Tmaxn, according to the scope of the value of Δ T according to specific function model determination ventilating opening target open degree Kn.
Function model is:
1) function model as Δ T<0 is: Y=0
2) function model as 0≤Δ T< Δ Tcn*5% is: Y=X
2/7
3) function model as Δ Tcn*5%≤Δ T< Δ Tcn*15% is: Y=X
1/3
4) function model as Δ Tcn*15%≤Δ T< Δ Tcn*25% is: Y=X
0.4
5) function model as Δ Tcn*25%≤Δ T< Δ Tcn*35% is: Y=X
0.5
6) function model as Δ Tcn*35%≤Δ T< Δ Tcn*45% is: Y=X
2/3
7) function model as Δ Tcn*45%≤Δ T≤Δ Tcn*55% is: Y=X
1
8) function model as Δ Tcn*55%< Δ T≤Δ Tcn*65% is: Y=X
3/2
9) function model as Δ Tcn*65%< Δ T≤Δ Tcn*75% is: Y=X
2
10) function model as Δ Tcn*75%< Δ T≤Δ Tcn*85% is: Y=X
2.5
11) function model as Δ Tcn*85%< Δ T≤Δ Tcn*95% is: Y=X
3
12) function model as Δ Tcn*95%< Δ T≤Δ Tcn is: Y=X
3.5
13) function model as Δ T> Δ Tcn is: Y=X
3.5
Wherein, Δ Tcn is booth internal temperature variation range, Δ Tcn=Tmaxn-Tminn; Y represents the quantizing range of ventilating opening open degree Kn, Y ∈ [0,1], Kn ∈ [0,100]; Therefore Kn is uniformly distributed in the span of Y, as Y<0, and Y=0, as Y>1, Y=1; X=(Tn-Tminn)/Δ Tcn, as X<0, X=0, as X>1, X=1.
3, the unlatching of ventilating opening is regulated
Performance element 40 controls the unlatching of ventilating opening, the temperature data of collection is transferred to control module 30 by data acquisition unit 12 and 11, control module 30 is passed to processing unit 60 after receiving temperature data, processing unit 60 is according to the temperature data sum functions model passed back in real time, calculate the open degree of ventilating opening, regulate the method for ventilating opening open degree as follows:
The max value of error Δ Kmax of intended target open degree Kn and actual open degree K and error minimum value Δ Kmin;
Station acquisition unit 50 gathers the actual open degree K of current ventilating opening, is compared by the error delta K of target open degree Kn and the actual open degree K of ventilating opening and max value of error Δ Kmax and error minimum value Δ Kmin;
As Δ K> Δ Kmax or Δ K< Δ Kmin, control module 30 controls performance element 40 action, regulates the opening degree of ventilating opening.
The opening and closing of ventilating opening is the direct current generator being controlled performance element 40 by control module 30, and direct current generator drives the opening and closing motion of ventilating opening to realize.The degree of the opening and closing of ventilating opening, it is the opening degree of the current ventilating opening gathered according to the displacement transducer of station acquisition unit 50, gathering current ventilating opening open degree is exactly which position being in 0%-100%, then actual open degree is compared with target open degree, after control module receives the data of displacement transducer collection, send to processing unit, after the analyzing and processing of processing unit, if the error of actual open degree and target open degree is in the error range allowed, then control module does not send instruction to performance element, if the error of the actual open degree of ventilating opening and target open degree is greater than or less than the error range of permission, then control module controls the direct current generator startup of performance element, direct current generator then drives ventilating opening closure or openness.
The inventive method comprises further:
4, video monitoring in canopy
The video image of rice shoot in booth is obtained by image acquisition units 20; The unlatching of ventilating opening is controlled according to video image.
When staff needs to watch the video information in booth, send instruction by processing unit to control module, after control module receives instruction, view data can be obtained from image acquisition units, be sent to processing unit after process and show.In addition, staff also can control cloud platform rotation to watch the video of zones of different by instruction, sends instruction to performance element according to the situation at scene, drives ventilating opening to suitable degree.
In the inventive method, statistics can be carried out by processing unit to the history environment parameter (as temperature, humidity etc.) in canopy and browse.
In the present invention, data acquisition unit is temperature collecting device, temperature collecting device is located at the ceiling of booth, booth inside left and booth inner right side, the packing density of temperature collecting device is 1/10 meters, in the present invention, temperature collecting device is temperature sensor, performance element is direct current generator, and station acquisition unit is displacement or range sensor, and image acquisition units is the camera that can gather image information; Processing unit is computing machine., control module is VIR1000 type internet-of-things terminal equipment.
According to the inventive method, calculate greenhouse temperature and control, as shown in table 1 for the result controlling ventilating opening open degree:
Table 1
Curve in Fig. 3 shows the open degree determining ventilating opening according to canopy temperature and these two parameters of booth internal and external temperature.
Obviously; the above embodiment of the present invention is only for example of the present invention is clearly described; and be not the restriction to embodiments of the present invention; for those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here cannot give exhaustive to all embodiments, every belong to technical scheme of the present invention the apparent change of extending out or variation be still in the row of protection scope of the present invention.
Claims (10)
1. the temperature controlled method of factory's seedling greenhouse, it is characterized in that, the method comprises:
Gather the temperature Tn data of booth inside and outside temperature Te data, calculate booth inside and outside temperature difference Δ T;
Booth ventilating opening target open degree Kn is determined according to described booth internal temperature Tn, booth external temperature Te and booth inside and outside temperature difference Δ T;
Detect the actual open degree K of ventilating opening, calculate the error delta K of described target open degree Kn and the actual open degree K of ventilating opening, regulate the opening degree of ventilating opening.
2. method according to claim 1, is characterized in that, gathers the temperature Tn data of booth inside and outside temperature Te data, calculates booth inside and outside temperature difference Δ T, comprise the steps:
Temperature data acquisition device is installed respectively in left side in the ceiling, canopy of booth and right side;
Gather the temperature of ceiling, the temperature in left side and the temperature on the interior right side of canopy in canopy;
Calculate the mean value of temperature everywhere respectively, the temperature data obtaining ceiling is Ttn, the temperature data in left side is that in Tln and canopy, the temperature data on right side is Trn in canopy;
Calculate the temperature Tn of booth inside, the temperature Tn=(Ttn+Tln+Trn)/3 of described booth inside;
Gather the temperature data Te of booth outside;
Calculate booth inside and outside temperature difference Δ T=Te-Tn.
3. method according to claim 2, is characterized in that, the temperature data Tln in the interior left side of the temperature data Ttn of described ceiling, canopy and the temperature data Trn on the interior right side of canopy, and computing method are as follows:
Booth internal temperature is obtained by temperature collecting device, and described temperature collecting device is located at the ceiling of booth, booth inside left and booth inner right side, and the installation quantity of the temperature collecting device of described ceiling is N
top, it is N that the temperature collecting device of booth inside left installs quantity
left, it is N that the temperature collecting device of booth inner right side installs quantity
right;
The temperature computation method of ceiling is as follows:
Work as N
topduring <3, booth ceiling temperature Ttn is the mean value of N number of temperature data that N number of harvester collects;
Work as 3<N
topduring <7, booth ceiling temperature Ttn is the temperature averages after removing 1 maximal value and 1 minimum value;
Work as N
topduring >7, the temperature Ttn of booth ceiling is the temperature averages after removing 2 maximal values and 2 minimum value;
Described booth inside left temperature Tln is identical with the computing method of booth ceiling temperature Ttn with the computing method of booth inner right side temperature Trn; Calculate Tln and Trn.
Described Tn=(Ttn+Tln+Trn)/3.
4. method according to claim 1, is characterized in that, determines booth ventilating opening target open degree Kn, comprise the steps: according to described booth internal temperature Tn, booth external temperature Te and booth inside and outside temperature difference Δ T
The minimum value Tminn of booth external temperature Te and the booth internal temperature of setting and maximum of T maxn is compared;
As described Te<Tminn, ventilating opening is closed;
As described Te>Tmaxn, ventilating opening is opened completely;
As described Tminn≤Te≤Tmaxn, according to the scope of the value of Δ T according to specific function model determination ventilating opening target open degree Kn.
5. method according to claim 4, is characterized in that, according to certain function model determination open degree, preferred function model is:
1) function model as Δ T<0 is: Y=0
2) function model as 0≤Δ T< Δ Tcn*5% is: Y=X
2/7
3) function model as Δ Tcn*5%≤Δ T< Δ Tcn*15% is: Y=X
1/3
4) function model as Δ Tcn*15%≤Δ T< Δ Tcn*25% is: Y=X
0.4
5) function model as Δ Tcn*25%≤Δ T< Δ Tcn*35% is: Y=X
0.5
6) function model as Δ Tcn*35%≤Δ T< Δ Tcn*45% is: Y=X
2/3
7) function model as Δ Tcn*45%≤Δ T≤Δ Tcn*55% is: Y=X
1
8) function model as Δ Tcn*55%< Δ T≤Δ Tcn*65% is: Y=X
3/2
9) function model as Δ Tcn*65%< Δ T≤Δ Tcn*75% is: Y=X
2
10) function model as Δ Tcn*75%< Δ T≤Δ Tcn*85% is: Y=X
2.5
11) function model as Δ Tcn*85%< Δ T≤Δ Tcn*95% is: Y=X
3
12) function model as Δ Tcn*95%< Δ T≤Δ Tcn is: Y=X
3.5
13) function model as Δ T> Δ Tcn is: Y=X
3.5
Wherein, Δ Tcn is booth internal temperature variation range, Δ Tcn=Tmaxn-Tminn; Y represents the quantizing range of ventilating opening open degree Kn, Y ∈ [0,1], Kn ∈ [0,100]; Therefore Kn is uniformly distributed in the span of Y, as Y<0, and Y=0, as Y>1, Y=1; X=(Tn-Tminn)/Δ Tcn, as X<0, X=0, as X>1, X=1.
6. method according to claim 1, is characterized in that, the actual open degree K of described detection ventilating opening, calculates the error delta K of described target open degree Kn and the actual open degree K of ventilating opening, regulates the opening degree of ventilating opening, comprises the steps:
The max value of error Δ Kmax of intended target open degree Kn and actual open degree K and error minimum value Δ Kmin, described Δ K=Kn – K;
The error delta K of described target open degree Kn and the actual open degree K of ventilating opening and max value of error Δ Kmax and error minimum value Δ Kmin is compared;
As Δ K> Δ Kmax, increase ventilating opening open degree to Kn, described Δ Kmax value is 1,2,3,4 or 5;
As Δ K< Δ Kmin, reduce ventilating opening open degree to Kn, described Δ Kmax value is-1 ,-2 ,-3 ,-4 or-5.
7. method according to claim 1, is characterized in that, the method comprises further:
The video image of rice shoot in booth is obtained by image acquisition units;
The unlatching of ventilating opening is controlled according to described video image.
8. a seedling greenhouse temperature control equipment, is characterized in that, this device comprises:
Collecting unit, the data needed for controlling for collecting temperature, the data needed for described temperature controls are the actual open degree K of described booth internal temperature Tn, described booth external temperature Te and ventilating opening;
Performance element, according to gathered temperature data Tn and Te, controls the unlatching of ventilating opening;
Processing unit, obtains the real time data that collecting unit gathers, processes and analyze real time data, and Graphics Processing result;
Control module, receives the data of collecting unit, and sends the data of reception to processing unit, receive the instruction of processing unit simultaneously, and instruction is sent to collecting unit and performance element.
9. device according to claim 8, is characterized in that, described collecting unit comprises data acquisition unit, station acquisition unit, image acquisition units,
Data acquisition unit comprises booth internal temperature harvester and booth external temperature harvester;
Station acquisition unit, the position data of acquisition execution unit;
Image acquisition units, for gathering the image/video data of the inner rice shoot of booth.
10. device according to claim 9, it is characterized in that, described temperature collecting device is located at the ceiling of booth, booth inside left and booth inner right side, described temperature collecting device is installed according to certain density, preferred packing density is 1/10 meters, and described temperature collecting device is temperature sensor, and described performance element is direct current generator, described station acquisition unit is displacement or range sensor, and described image acquisition units is the camera that can gather image information; Described processing unit is computing machine, and described control module is VIR1000 internet-of-things terminal equipment.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018076515A1 (en) * | 2016-10-31 | 2018-05-03 | 深圳前海弘稼科技有限公司 | Temperature regulation method and temperature regulation device for crops greenhouse |
| CN111427404A (en) * | 2020-03-31 | 2020-07-17 | 苏州科腾软件开发有限公司 | Agricultural greenhouse environment control system based on 5G network |
| CN112667008A (en) * | 2020-12-16 | 2021-04-16 | 惠州城市职业学院(惠州商贸旅游高级职业技术学校) | Intelligent temperature control system for leaf vegetable greenhouse |
| CN114128537A (en) * | 2021-10-25 | 2022-03-04 | 农业农村部规划设计研究院 | Greenhouse environment control method and system and greenhouse |
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| CN203860146U (en) * | 2014-05-30 | 2014-10-08 | 四川工程职业技术学院 | Pneumatic skylight opening and closing device for greenhouse |
| CN204028722U (en) * | 2014-07-14 | 2014-12-17 | 浙江大学 | A kind of temperature control equipment of monomer canopy |
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| JPH08172933A (en) * | 1994-12-28 | 1996-07-09 | Shigenori Motomura | Method for opening/closing aeration opening of plastic greenhouse and plastic greenhouse utilizing the same |
| CN202003247U (en) * | 2011-04-06 | 2011-10-05 | 崔桂亮 | Novel green house automatic temperature control system |
| CN102640684A (en) * | 2012-04-12 | 2012-08-22 | 嘉兴学院 | Control method and control system for mechanical ventilation of greenhouse |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018076515A1 (en) * | 2016-10-31 | 2018-05-03 | 深圳前海弘稼科技有限公司 | Temperature regulation method and temperature regulation device for crops greenhouse |
| CN111427404A (en) * | 2020-03-31 | 2020-07-17 | 苏州科腾软件开发有限公司 | Agricultural greenhouse environment control system based on 5G network |
| CN112667008A (en) * | 2020-12-16 | 2021-04-16 | 惠州城市职业学院(惠州商贸旅游高级职业技术学校) | Intelligent temperature control system for leaf vegetable greenhouse |
| CN114128537A (en) * | 2021-10-25 | 2022-03-04 | 农业农村部规划设计研究院 | Greenhouse environment control method and system and greenhouse |
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| CN104615174B (en) | 2017-04-12 |
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